GASKIN family Barbados/Guiana/Barbados

Does anyone have any info on or connections with a George GASKIN, a tailor, born about 1847 in St Michael, died in Oct 1906? He was my great great grandfather and at some point he went to Guiana where my great grandmother, Elfreda Beatrice Gaskin was born in about 1874. I have no idea who George's wife was or when or where they married. Apparently there is no search facility for Guiana records in person et alone online so I've hit a huge brick wall. My late father told me that one of my great grandmother's sisters married a HOLDER and I believe that is Helena GASKIN, b 1867 in Guiana. George, Elfreda and clearly Helena came back to Bim at some point. Help please!